Vacuum cleaner nozzle for floors and carpets

• US 20040216268A1
• Filed: 02/13/2004
• Published: 11/04/2004
• Est. Priority Date: 02/20/2003
• Status: Active Grant

• Current Assignee: Wessel-Werk GmbH & Co. KG
• Original Assignee: Wessel-Werk GmbH & Co. KG
• Inventors: Kaffenberger, Dieter, Lind, Thomas
• Granted Patent: US 7,222,393 B2
• Time in Patent Office: Days
• US Class Current: 15/415.1
• CPC Class Codes: A47L 9/02 Nozzles suction nozzles for fluid transport B65G51/00
• CPC Class Codes: A47L 9/06 with fixed, e.g. adjustably fixed brushes or the like
• CPC Class Codes: A47L 9/0653 with mechanical actuation, e.g. using a lever

Abstract

A vacuum cleaner nozzle has a housing with a plastic upper part, a slide sole and a gasket base pivotably arranged around an axis in the upper part of the housing. There is at least one strip-shaped gasket element that can be retracted and moved out with an adjusting movement of the gasket base at the lower side of the nozzle. The slide sole is fastened to the upper part of the housing with slip joints between pivot-shaped projections on the upper part and counter-elements formed on the slide sole. The gasket base is guided on at least one of the pivots formed by slip joints.

Claims

1. A vacuum cleaner nozzle for floors and carpets, comprising:

a housing having an upper part made of plastic and having pivot-shaped projections;

a slide sole with a suction port, said slide sole being connected to the upper part of the housing via slip joints arranged between the pivot-shaped projections of the upper part of the housing and counter elements formed on the slide sole;

a gasket base adjustably arranged inside the upper part of the housing and having at least one strip-shaped gasket element that can be retracted and moved out at a lower side of the nozzle with an adjustment movement of the gasket base, wherein the gasket base is pivotably held in a rear segment of the upper part of the housing in a working direction between formed support webs of the upper part of the housing and the slide sole, and is guided at least at one of the pivots formed by the slip joints;

a tilting lever to operate the gasket base;

return springs that act on the gasket base; and

a suction channel formed on the upper part of the housing, said suction channel having on one end a connecting piece connected to the slide sole and a joint cup of a hinged joint on another end, wherein the suction port is comprised of a flow channel formed into the slide sole, which extends from a central opening running into the suction channel transversely to the suction channel.

2. The vacuum cleaner nozzle according to claim 1, wherein the gasket base has formed support surfaces for the return springs of one respective guide recess, with the corresponding pivot reaching through said guide recess, and wherein the return springs are arranged on the pivots between the slide sole and the support surfaces of the gasket base.

3. The vacuum cleaner nozzle according to claim 1, wherein the counter-elements of the slide sole are developed as stump-shaped, cylindrical elements with a mushroom head.

4. The vacuum cleaner nozzle according to claim 3, wherein additional catch projections are formed on the slide sole, which can be affixed to the connecting piece of the upper part of the housing and at wall spaces of the upper part of the housing.

5. The vacuum cleaner nozzle according to claim 1, wherein the gasket base is comprised of:

a pin-jointed frame plastic molding having a rod with cylindrical bearing surfaces;

at least one parallel profile strip that is connected to the gasket element as a longitudinal member;

cross-members connecting the at least one profile strip and being arranged at both sides of the suction channel,

wherein the profile strip supporting the gasket element is arranged in a working direction upstream of the connecting piece of the suction channel.

6. The vacuum cleaner nozzle according to claim 5, wherein the gasket base has two profile strips that brace the plastic molding to connect the gasket elements, with the profile strips being arranged in the working direction in front of and behind the suction port.

7. The vacuum cleaner nozzle according to claim 6, wherein the gasket element connected to the profile strip behind the suction port can be retracted and moved out through a gap in the slide sole.

8. The vacuum cleaner nozzle according to claim 6, wherein a bristle strip is connected to the front profile strip and a strip of elastomer material is connected to the rear profile strip.

9. The vacuum cleaner nozzle according to claim 1, wherein the tilting lever is comprised of a pivotable shaft with at least one actuating surface developed as an impact switch as well as formed cam lobes, with the cam lobes acting on an assigned contact surface of the gasket base.

10. The vacuum cleaner nozzle according to claim 9, wherein the gasket base has two respective cross-members on each side of the suction channel, with the impact switch dipping into a free space between adjacent cross-members and with the contact surfaces that cooperate with the tilting lever also being arranged between the cross-members.

11. The vacuum cleaner nozzle according to claim 1, wherein the slide sole has an opening that is surrounded by formed projections that engage in the connecting piece of the suction channel and seal a transition between the suction port of the slide sole and the suction channel of the upper part of the housing against extraneous air.

12. The vacuum cleaner nozzle according to claim 1, wherein the slide sole has recesses in front of or behind the suction channel and wherein thread lifting strips are glued into said recesses.

13. The vacuum cleaner nozzle according to claim 1, wherein the hinged joint has an integral shaft axis and wherein wheels are plugged onto ends of said shaft axis.

14. The vacuum cleaner nozzle according to claim 7, wherein a bristle strip is connected to the front profile strip and a strip of elastomer material is connected to the rear profile strip.